Use pyproject.toml instead of setup.cfg (#401)

Migrate the package configuration to the new file format. Need to add
flake8 configuration in a separate file. Remove the setup.py as well
since that didn't seem to trigger GitHub dependent package analysis.

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+ignore = E203, E266, E501, W503, F401, E741
+max-line-length = 88
+max-doc-length = 79

.github/workflows/docs.yml

@@ -65,7 +65,7 @@ jobs:
       - name: Collect requirements
         run: |
           echo "Install Dependente to capture dependencies:"
-          python -m pip install dependente==0.2.0
+          python -m pip install dependente==0.3.0
           echo ""
           echo "Capturing run-time dependencies:"
           dependente --source install,extras > requirements-full.txt

.github/workflows/test.yml

@@ -91,7 +91,7 @@ jobs:
       - name: Collect requirements
         run: |
           echo "Install Dependente to capture dependencies:"
-          python -m pip install dependente==0.2.0
+          python -m pip install dependente==0.3.0
           echo ""
           dependente_args="--source install"
           if [[ "${{ matrix.dependencies }}" == "oldest" ]]; then

MANIFEST.in

@@ -5,11 +5,11 @@ prune data
 prune doc
 prune env
 prune paper
+prune tools
 exclude .*.yml
 exclude .*rc
 exclude Makefile
 exclude .gitignore
 exclude .gitattributes
 exclude environment.yml
-exclude license_notice.py
 include pooch/tests/data

pyproject.toml

@@ -1,5 +1,53 @@
-# Specify that we use setuptools and setuptools_scm (to generate the version
-# string). Actual configuration is in setup.cfg.
+[project]
+name = "pooch"
+description = "Forward modeling, inversion, and processing gravity and magnetic data"
+dynamic = ["version"]
+authors = [
+  {name="The Pooch Developers", email="[email protected]"},
+]
+maintainers = [
+  {name = "Leonardo Uieda", email = "[email protected]"}
+]
+readme = "README.md"
+license = {text = "BSD-3-Clause"}
+keywords = ["data", "download", "caching", "http"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Education",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: OS Independent",
+    "Topic :: Scientific/Engineering",
+    "Topic :: Software Development :: Libraries",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+]
+requires-python = ">=3.7"
+dependencies = [
+    "platformdirs >= 2.5.0",
+    "packaging >= 20.0",
+    "requests >= 2.19.0",
+]
+
+[project.optional-dependencies]
+progress = ["tqdm>=4.41.0,<5.0.0"]
+sftp = ["paramiko>=2.7.0"]
+xxhash = ["xxhash>=1.4.3"]
+
+[project.urls]
+"Documentation" = "https://www.fatiando.org/pooch"
+"Changelog" = "https://www.fatiando.org/pooch/latest/changes.html"
+"Bug Tracker" = "https://github.com/fatiando/pooch/issues"
+"Source Code" = "https://github.com/fatiando/pooch"
+
+[tool.setuptools.packages]
+find = {}  # Scanning implicit namespaces is active by default
+
 [build-system]
 requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.2"]
 build-backend = "setuptools.build_meta"